diff options
Diffstat (limited to 'arch/arm/mach-mx3/mx31moboard-devboard.c')
| -rw-r--r-- | arch/arm/mach-mx3/mx31moboard-devboard.c | 123 |
1 files changed, 116 insertions, 7 deletions
diff --git a/arch/arm/mach-mx3/mx31moboard-devboard.c b/arch/arm/mach-mx3/mx31moboard-devboard.c index d080b4a..4704405 100644 --- a/arch/arm/mach-mx3/mx31moboard-devboard.c +++ b/arch/arm/mach-mx3/mx31moboard-devboard.c @@ -16,33 +16,142 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ -#include <linux/types.h> +#include <linux/fsl_devices.h> +#include <linux/gpio.h> #include <linux/init.h> - +#include <linux/interrupt.h> #include <linux/platform_device.h> +#include <linux/types.h> -#include <mach/hardware.h> #include <mach/common.h> #include <mach/imx-uart.h> #include <mach/iomux-mx3.h> +#include <mach/hardware.h> +#include <mach/mmc.h> #include "devices.h" +static unsigned int devboard_pins[] = { + /* UART1 */ + MX31_PIN_CTS2__CTS2, MX31_PIN_RTS2__RTS2, + MX31_PIN_TXD2__TXD2, MX31_PIN_RXD2__RXD2, + /* SDHC2 */ + MX31_PIN_PC_PWRON__SD2_DATA3, MX31_PIN_PC_VS1__SD2_DATA2, + MX31_PIN_PC_READY__SD2_DATA1, MX31_PIN_PC_WAIT_B__SD2_DATA0, + MX31_PIN_PC_CD2_B__SD2_CLK, MX31_PIN_PC_CD1_B__SD2_CMD, + MX31_PIN_ATA_DIOR__GPIO3_28, MX31_PIN_ATA_DIOW__GPIO3_29, + /* USB OTG */ + MX31_PIN_USBOTG_DATA0__USBOTG_DATA0, + MX31_PIN_USBOTG_DATA1__USBOTG_DATA1, + MX31_PIN_USBOTG_DATA2__USBOTG_DATA2, + MX31_PIN_USBOTG_DATA3__USBOTG_DATA3, + MX31_PIN_USBOTG_DATA4__USBOTG_DATA4, + MX31_PIN_USBOTG_DATA5__USBOTG_DATA5, + MX31_PIN_USBOTG_DATA6__USBOTG_DATA6, + MX31_PIN_USBOTG_DATA7__USBOTG_DATA7, + MX31_PIN_USBOTG_CLK__USBOTG_CLK, MX31_PIN_USBOTG_DIR__USBOTG_DIR, + MX31_PIN_USBOTG_NXT__USBOTG_NXT, MX31_PIN_USBOTG_STP__USBOTG_STP, + MX31_PIN_USB_OC__GPIO1_30, +}; + static struct imxuart_platform_data uart_pdata = { .flags = IMXUART_HAVE_RTSCTS, }; -static int mxc_uart1_pins[] = { - MX31_PIN_CTS2__CTS2, MX31_PIN_RTS2__RTS2, - MX31_PIN_TXD2__TXD2, MX31_PIN_RXD2__RXD2, +#define SDHC2_CD IOMUX_TO_GPIO(MX31_PIN_ATA_DIOR) +#define SDHC2_WP IOMUX_TO_GPIO(MX31_PIN_ATA_DIOW) + +static int devboard_sdhc2_get_ro(struct device *dev) +{ + return gpio_get_value(SDHC2_WP); +} + +static int devboard_sdhc2_init(struct device *dev, irq_handler_t detect_irq, + void *data) +{ + int ret; + + ret = gpio_request(SDHC2_CD, "sdhc-detect"); + if (ret) + return ret; + + gpio_direction_input(SDHC2_CD); + + ret = gpio_request(SDHC2_WP, "sdhc-wp"); + if (ret) + goto err_gpio_free; + gpio_direction_input(SDHC2_WP); + + ret = request_irq(gpio_to_irq(SDHC2_CD), detect_irq, + IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, + "sdhc2-card-detect", data); + if (ret) + goto err_gpio_free_2; + + return 0; + +err_gpio_free_2: + gpio_free(SDHC2_WP); +err_gpio_free: + gpio_free(SDHC2_CD); + + return ret; +} + +static void devboard_sdhc2_exit(struct device *dev, void *data) +{ + free_irq(gpio_to_irq(SDHC2_CD), data); + gpio_free(SDHC2_WP); + gpio_free(SDHC2_CD); +} + +static struct imxmmc_platform_data sdhc2_pdata = { + .get_ro = devboard_sdhc2_get_ro, + .init = devboard_sdhc2_init, + .exit = devboard_sdhc2_exit, +}; + +static struct fsl_usb2_platform_data usb_pdata = { + .operating_mode = FSL_USB2_DR_DEVICE, + .phy_mode = FSL_USB2_PHY_ULPI, }; +#define OTG_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST) +#define OTG_EN_B IOMUX_TO_GPIO(MX31_PIN_USB_OC) + +static void devboard_usbotg_init(void) +{ + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, OTG_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, OTG_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, OTG_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, OTG_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, OTG_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, OTG_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, OTG_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, OTG_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, OTG_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, OTG_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, OTG_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, OTG_PAD_CFG); + + gpio_request(OTG_EN_B, "usb-udc-en"); + gpio_direction_output(OTG_EN_B, 0); +} + /* * system init for baseboard usage. Will be called by mx31moboard init. */ void __init mx31moboard_devboard_init(void) { printk(KERN_INFO "Initializing mx31devboard peripherals\n"); - mxc_iomux_setup_multiple_pins(mxc_uart1_pins, ARRAY_SIZE(mxc_uart1_pins), "uart1"); + + mxc_iomux_setup_multiple_pins(devboard_pins, ARRAY_SIZE(devboard_pins), + "devboard"); + mxc_register_device(&mxc_uart_device1, &uart_pdata); + + mxc_register_device(&mxcsdhc_device1, &sdhc2_pdata); + + devboard_usbotg_init(); + mxc_register_device(&mxc_otg_udc_device, &usb_pdata); } |
